I like James Carville's definition of a swing state, which is that if you were told the outcome in that state you wouldn't be able to judge the outcome of the election as a whole. If you were told the Republicans carried Colorado, you wouldn't be able to gather all that much about the election as a whole. But, if you were told the Democrats carried North Carolina, you could reasonably assume it was a strong Democratic win.
Under that definition Florida wouldn't be a swing state. If FL goes DD their candidate wins the White House.
Florida is not a pure swing-state either.
The pure swing states are:
GOP 235
Ohio
Iowa
Pennsylvania
Colorado
Virginia
DEM 237
